So in the known issues there is a workaround to enable Vulkan API instead of DirectX by adding a parameter to the shortcut, but this workaround isn't usable due to the fact that you guys have disabled the use of these target fields, so enabling Vulkan isn't possible for gamepass users.

• On Epic Game Store and Gamepass: Create a shortcut, open the properties of this shortcut, and add -force-vulkan in the “Start in” field after the quotation marks